X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Fxscale.c;h=c3b8d3358822724130cb2109759da7be57c2021f;hp=1d379f59184879c9fe7a1a297698b5170fbc1878;hb=40580e2d71ac56131a5da7e5f67a0b63450e4f24;hpb=d3f0549f08d8aac36143bca9e7f7e1308383b7c2 diff --git a/src/target/xscale.c b/src/target/xscale.c index 1d379f5918..c3b8d33588 100644 --- a/src/target/xscale.c +++ b/src/target/xscale.c @@ -2,6 +2,9 @@ * Copyright (C) 2006, 2007 by Dominic Rath * * Dominic.Rath@gmx.de * * * + * Copyright (C) 2007,2008 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * @@ -25,6 +28,7 @@ #include "xscale.h" +#include "arm7_9_common.h" #include "register.h" #include "target.h" #include "armv4_5.h" @@ -49,9 +53,9 @@ int xscale_register_commands(struct command_context_s *cmd_ctx); /* forward declarations */ -int xscale_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target); +int xscale_target_create(struct target_s *target, Jim_Interp *interp); int xscale_init_target(struct command_context_s *cmd_ctx, struct target_s *target); -int xscale_quit(); +int xscale_quit(void); int xscale_arch_state(struct target_s *target); int xscale_poll(target_t *target); @@ -73,7 +77,6 @@ int xscale_write_core_reg(struct target_s *target, int num, enum armv4_5_mode mo int xscale_read_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer); int xscale_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer); int xscale_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffer); -int xscale_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum); int xscale_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint); int xscale_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoint); @@ -110,7 +113,8 @@ target_type_t xscale_target = .read_memory = xscale_read_memory, .write_memory = xscale_write_memory, .bulk_write_memory = xscale_bulk_write_memory, - .checksum_memory = xscale_checksum_memory, + .checksum_memory = arm7_9_checksum_memory, + .blank_check_memory = arm7_9_blank_check_memory, .run_algorithm = armv4_5_run_algorithm, @@ -120,10 +124,10 @@ target_type_t xscale_target = .remove_watchpoint = xscale_remove_watchpoint, .register_commands = xscale_register_commands, - .target_command = xscale_target_command, + .target_create = xscale_target_create, .init_target = xscale_init_target, .quit = xscale_quit, - + .virt2phys = xscale_virt2phys, .mmu = xscale_mmu }; @@ -208,23 +212,24 @@ int xscale_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, xsc return ERROR_OK; } -int xscale_jtag_set_instr(int chain_pos, u32 new_instr) +int xscale_jtag_set_instr(jtag_tap_t *tap, u32 new_instr) { - jtag_device_t *device = jtag_get_device(chain_pos); + if (tap==NULL) + return ERROR_FAIL; - if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr) + if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr) { scan_field_t field; - field.device = chain_pos; - field.num_bits = device->ir_length; + field.tap = tap; + field.num_bits = tap->ir_length; field.out_value = calloc(CEIL(field.num_bits, 8), 1); buf_set_u32(field.out_value, 0, field.num_bits, new_instr); field.out_mask = NULL; field.in_value = NULL; - jtag_set_check_value(&field, device->expected, device->expected_mask, NULL); + jtag_set_check_value(&field, tap->expected, tap->expected_mask, NULL); - jtag_add_ir_scan(1, &field, -1); + jtag_add_ir_scan(1, &field, TAP_INVALID); free(field.out_value); } @@ -247,20 +252,20 @@ int xscale_read_dcsr(target_t *target) u8 field2_check_value = 0x0; u8 field2_check_mask = 0x1; - jtag_add_end_state(TAP_PD); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dcsr); + jtag_add_end_state(TAP_DRPAUSE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dcsr); buf_set_u32(&field0, 1, 1, xscale->hold_rst); buf_set_u32(&field0, 2, 1, xscale->external_debug_break); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = &field0; fields[0].out_mask = NULL; fields[0].in_value = NULL; jtag_set_check_value(fields+0, &field0_check_value, &field0_check_mask, NULL); - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = NULL; fields[1].out_mask = NULL; @@ -270,14 +275,14 @@ int xscale_read_dcsr(target_t *target) fields[1].in_check_value = NULL; fields[1].in_check_mask = NULL; - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = &field2; fields[2].out_mask = NULL; fields[2].in_value = NULL; jtag_set_check_value(fields+2, &field2_check_value, &field2_check_mask, NULL); - jtag_add_dr_scan(3, fields, -1); + jtag_add_dr_scan(3, fields, TAP_INVALID); if ((retval = jtag_execute_queue()) != ERROR_OK) { @@ -295,9 +300,9 @@ int xscale_read_dcsr(target_t *target) fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value; fields[1].in_value = NULL; - jtag_add_end_state(TAP_RTI); + jtag_add_end_state(TAP_IDLE); - jtag_add_dr_scan(3, fields, -1); + jtag_add_dr_scan(3, fields, TAP_INVALID); /* DANGER!!! this must be here. It will make sure that the arguments * to jtag_set_check_value() does not go out of scope! */ @@ -308,12 +313,12 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) { if (num_words==0) return ERROR_INVALID_ARGUMENTS; - + int retval=ERROR_OK; armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - enum tap_state path[3]; + tap_state_t path[3]; scan_field_t fields[3]; u8 *field0 = malloc(num_words * 1); @@ -327,18 +332,18 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) int i; - path[0] = TAP_SDS; - path[1] = TAP_CD; - path[2] = TAP_SD; + path[0] = TAP_DRSELECT; + path[1] = TAP_DRCAPTURE; + path[2] = TAP_DRSHIFT; - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = NULL; fields[0].out_mask = NULL; fields[0].in_value = NULL; jtag_set_check_value(fields+0, &field0_check_value, &field0_check_mask, NULL); - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = NULL; fields[1].out_mask = NULL; @@ -348,18 +353,16 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) fields[1].in_check_value = NULL; fields[1].in_check_mask = NULL; - - - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = NULL; fields[2].out_mask = NULL; fields[2].in_value = NULL; jtag_set_check_value(fields+2, &field2_check_value, &field2_check_mask, NULL); - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgtx); - jtag_add_runtest(1, -1); /* ensures that we're in the TAP_RTI state as the above could be a no-op */ + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgtx); + jtag_add_runtest(1, TAP_INVALID); /* ensures that we're in the TAP_IDLE state as the above could be a no-op */ /* repeat until all words have been collected */ int attempts=0; @@ -374,7 +377,7 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) fields[1].in_handler_priv = (u8*)&field1[i]; jtag_add_pathmove(3, path); - jtag_add_dr_scan(3, fields, TAP_RTI); + jtag_add_dr_scan(3, fields, TAP_IDLE); words_scheduled++; } @@ -408,7 +411,7 @@ int xscale_receive(target_t *target, u32 *buffer, int num_words) break; } } - + words_done += words_scheduled; } @@ -424,8 +427,8 @@ int xscale_read_tx(target_t *target, int consume) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - enum tap_state path[3]; - enum tap_state noconsume_path[6]; + tap_state_t path[3]; + tap_state_t noconsume_path[6]; int retval; struct timeval timeout, now; @@ -437,29 +440,29 @@ int xscale_read_tx(target_t *target, int consume) u8 field2_check_value = 0x0; u8 field2_check_mask = 0x1; - jtag_add_end_state(TAP_RTI); + jtag_add_end_state(TAP_IDLE); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgtx); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgtx); - path[0] = TAP_SDS; - path[1] = TAP_CD; - path[2] = TAP_SD; + path[0] = TAP_DRSELECT; + path[1] = TAP_DRCAPTURE; + path[2] = TAP_DRSHIFT; - noconsume_path[0] = TAP_SDS; - noconsume_path[1] = TAP_CD; - noconsume_path[2] = TAP_E1D; - noconsume_path[3] = TAP_PD; - noconsume_path[4] = TAP_E2D; - noconsume_path[5] = TAP_SD; - - fields[0].device = xscale->jtag_info.chain_pos; + noconsume_path[0] = TAP_DRSELECT; + noconsume_path[1] = TAP_DRCAPTURE; + noconsume_path[2] = TAP_DREXIT1; + noconsume_path[3] = TAP_DRPAUSE; + noconsume_path[4] = TAP_DREXIT2; + noconsume_path[5] = TAP_DRSHIFT; + + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = NULL; fields[0].out_mask = NULL; fields[0].in_value = &field0_in; jtag_set_check_value(fields+0, &field0_check_value, &field0_check_mask, NULL); - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = NULL; fields[1].out_mask = NULL; @@ -469,9 +472,7 @@ int xscale_read_tx(target_t *target, int consume) fields[1].in_check_value = NULL; fields[1].in_check_mask = NULL; - - - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = NULL; fields[2].out_mask = NULL; @@ -483,42 +484,44 @@ int xscale_read_tx(target_t *target, int consume) for (;;) { - int i; - for (i=0; i<100; i++) + /* if we want to consume the register content (i.e. clear TX_READY), + * we have to go straight from Capture-DR to Shift-DR + * otherwise, we go from Capture-DR to Exit1-DR to Pause-DR + */ + if (consume) + jtag_add_pathmove(3, path); + else { - /* if we want to consume the register content (i.e. clear TX_READY), - * we have to go straight from Capture-DR to Shift-DR - * otherwise, we go from Capture-DR to Exit1-DR to Pause-DR - */ - if (consume) - jtag_add_pathmove(3, path); - else - { - jtag_add_pathmove(sizeof(noconsume_path)/sizeof(*noconsume_path), noconsume_path); - } - - jtag_add_dr_scan(3, fields, TAP_RTI); - - if ((retval = jtag_execute_queue()) != ERROR_OK) - { - LOG_ERROR("JTAG error while reading TX"); - return ERROR_TARGET_TIMEOUT; - } - - gettimeofday(&now, NULL); - if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec)&& (now.tv_usec > timeout.tv_usec))) - { - LOG_ERROR("time out reading TX register"); - return ERROR_TARGET_TIMEOUT; - } - if (!((!(field0_in & 1)) && consume)) - { - goto done; - } + jtag_add_pathmove(sizeof(noconsume_path)/sizeof(*noconsume_path), noconsume_path); + } + + jtag_add_dr_scan(3, fields, TAP_IDLE); + + if ((retval = jtag_execute_queue()) != ERROR_OK) + { + LOG_ERROR("JTAG error while reading TX"); + return ERROR_TARGET_TIMEOUT; + } + + gettimeofday(&now, NULL); + if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec)&& (now.tv_usec > timeout.tv_usec))) + { + LOG_ERROR("time out reading TX register"); + return ERROR_TARGET_TIMEOUT; + } + if (!((!(field0_in & 1)) && consume)) + { + goto done; } - LOG_DEBUG("waiting 10ms"); - usleep(10*1000); /* avoid flooding the logs */ - } + if (debug_level>=3) + { + LOG_DEBUG("waiting 100ms"); + alive_sleep(100); /* avoid flooding the logs */ + } else + { + keep_alive(); + } + } done: if (!(field0_in & 1)) @@ -544,18 +547,18 @@ int xscale_write_rx(target_t *target) u8 field2_check_value = 0x0; u8 field2_check_mask = 0x1; - jtag_add_end_state(TAP_RTI); + jtag_add_end_state(TAP_IDLE); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgrx); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgrx); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = &field0_out; fields[0].out_mask = NULL; fields[0].in_value = &field0_in; jtag_set_check_value(fields+0, &field0_check_value, &field0_check_mask, NULL); - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_RX].value; fields[1].out_mask = NULL; @@ -565,9 +568,7 @@ int xscale_write_rx(target_t *target) fields[1].in_check_value = NULL; fields[1].in_check_mask = NULL; - - - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = &field2; fields[2].out_mask = NULL; @@ -581,34 +582,36 @@ int xscale_write_rx(target_t *target) LOG_DEBUG("polling RX"); for (;;) { - int i; - for (i=0; i<10; i++) + jtag_add_dr_scan(3, fields, TAP_IDLE); + + if ((retval = jtag_execute_queue()) != ERROR_OK) { - jtag_add_dr_scan(3, fields, TAP_RTI); - - if ((retval = jtag_execute_queue()) != ERROR_OK) - { - LOG_ERROR("JTAG error while writing RX"); - return retval; - } - - gettimeofday(&now, NULL); - if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec)&& (now.tv_usec > timeout.tv_usec))) - { - LOG_ERROR("time out writing RX register"); - return ERROR_TARGET_TIMEOUT; - } - if (!(field0_in & 1)) - goto done; + LOG_ERROR("JTAG error while writing RX"); + return retval; + } + + gettimeofday(&now, NULL); + if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec)&& (now.tv_usec > timeout.tv_usec))) + { + LOG_ERROR("time out writing RX register"); + return ERROR_TARGET_TIMEOUT; + } + if (!(field0_in & 1)) + goto done; + if (debug_level>=3) + { + LOG_DEBUG("waiting 100ms"); + alive_sleep(100); /* avoid flooding the logs */ + } else + { + keep_alive(); } - LOG_DEBUG("waiting 10ms"); - usleep(10*1000); /* wait 10ms to avoid flooding the logs */ } done: - + /* set rx_valid */ field2 = 0x1; - jtag_add_dr_scan(3, fields, TAP_RTI); + jtag_add_dr_scan(3, fields, TAP_IDLE); if ((retval = jtag_execute_queue()) != ERROR_OK) { @@ -624,104 +627,58 @@ int xscale_send(target_t *target, u8 *buffer, int count, int size) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; + u32 t[3]; + int bits[3]; int retval; int done_count = 0; - u8 output[4] = {0, 0, 0, 0}; - - scan_field_t fields[3]; - u8 field0_out = 0x0; - u8 field0_check_value = 0x2; - u8 field0_check_mask = 0x6; - u8 field2 = 0x1; - u8 field2_check_value = 0x0; - u8 field2_check_mask = 0x1; - - jtag_add_end_state(TAP_RTI); - - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dbgrx); - - fields[0].device = xscale->jtag_info.chain_pos; - fields[0].num_bits = 3; - fields[0].out_value = &field0_out; - fields[0].out_mask = NULL; - fields[0].in_handler = NULL; - fields[0].in_value = NULL; - if (!xscale->fast_memory_access) - { - jtag_set_check_value(fields+0, &field0_check_value, &field0_check_mask, NULL); - } - - fields[1].device = xscale->jtag_info.chain_pos; - fields[1].num_bits = 32; - fields[1].out_value = output; - fields[1].out_mask = NULL; - fields[1].in_value = NULL; - fields[1].in_handler = NULL; - fields[1].in_handler_priv = NULL; - fields[1].in_check_value = NULL; - fields[1].in_check_mask = NULL; + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dbgrx); - fields[2].device = xscale->jtag_info.chain_pos; - fields[2].num_bits = 1; - fields[2].out_value = &field2; - fields[2].out_mask = NULL; - fields[2].in_value = NULL; - fields[2].in_handler = NULL; - if (!xscale->fast_memory_access) - { - jtag_set_check_value(fields+2, &field2_check_value, &field2_check_mask, NULL); - } - - if (size==4) + bits[0]=3; + t[0]=0; + bits[1]=32; + t[2]=1; + bits[2]=1; + int endianness = target->endianness; + while (done_count++ < count) { - int endianness = target->endianness; - while (done_count++ < count) + switch (size) { + case 4: if (endianness == TARGET_LITTLE_ENDIAN) { - output[0]=buffer[0]; - output[1]=buffer[1]; - output[2]=buffer[2]; - output[3]=buffer[3]; + t[1]=le_to_h_u32(buffer); } else { - output[0]=buffer[3]; - output[1]=buffer[2]; - output[2]=buffer[1]; - output[3]=buffer[0]; + t[1]=be_to_h_u32(buffer); } - jtag_add_dr_scan(3, fields, TAP_RTI); - buffer += size; - } - - } else - { - while (done_count++ < count) - { - /* extract sized element from target-endian buffer, and put it - * into little-endian output buffer - */ - switch (size) + break; + case 2: + if (endianness == TARGET_LITTLE_ENDIAN) { - case 2: - buf_set_u32(output, 0, 32, target_buffer_get_u16(target, buffer)); - break; - case 1: - output[0] = *buffer; - break; - default: - LOG_ERROR("BUG: size neither 4, 2 nor 1"); - exit(-1); + t[1]=le_to_h_u16(buffer); + } else + { + t[1]=be_to_h_u16(buffer); } - - jtag_add_dr_scan(3, fields, TAP_RTI); - buffer += size; + break; + case 1: + t[1]=buffer[0]; + break; + default: + LOG_ERROR("BUG: size neither 4, 2 nor 1"); + exit(-1); } - + jtag_add_dr_out(xscale->jtag_info.tap, + 3, + bits, + t, + TAP_IDLE); + buffer += size; } if ((retval = jtag_execute_queue()) != ERROR_OK) @@ -763,20 +720,20 @@ int xscale_write_dcsr(target_t *target, int hold_rst, int ext_dbg_brk) if (ext_dbg_brk != -1) xscale->external_debug_break = ext_dbg_brk; - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dcsr); + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dcsr); buf_set_u32(&field0, 1, 1, xscale->hold_rst); buf_set_u32(&field0, 2, 1, xscale->external_debug_break); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 3; fields[0].out_value = &field0; fields[0].out_mask = NULL; fields[0].in_value = NULL; jtag_set_check_value(fields+0, &field0_check_value, &field0_check_mask, NULL); - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 32; fields[1].out_value = xscale->reg_cache->reg_list[XSCALE_DCSR].value; fields[1].out_mask = NULL; @@ -786,16 +743,14 @@ int xscale_write_dcsr(target_t *target, int hold_rst, int ext_dbg_brk) fields[1].in_check_value = NULL; fields[1].in_check_mask = NULL; - - - fields[2].device = xscale->jtag_info.chain_pos; + fields[2].tap = xscale->jtag_info.tap; fields[2].num_bits = 1; fields[2].out_value = &field2; fields[2].out_mask = NULL; fields[2].in_value = NULL; jtag_set_check_value(fields+2, &field2_check_value, &field2_check_mask, NULL); - jtag_add_dr_scan(3, fields, -1); + jtag_add_dr_scan(3, fields, TAP_INVALID); if ((retval = jtag_execute_queue()) != ERROR_OK) { @@ -833,8 +788,8 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) LOG_DEBUG("loading miniIC at 0x%8.8x", va); - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.ldic); /* LDIC */ + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.ldic); /* LDIC */ /* CMD is b010 for Main IC and b011 for Mini IC */ if (mini) @@ -847,7 +802,7 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) /* virtual address of desired cache line */ buf_set_u32(packet, 0, 27, va >> 5); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 6; fields[0].out_value = &cmd; fields[0].out_mask = NULL; @@ -857,7 +812,7 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) fields[0].in_handler = NULL; fields[0].in_handler_priv = NULL; - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 27; fields[1].out_value = packet; fields[1].out_mask = NULL; @@ -867,7 +822,7 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) fields[1].in_handler = NULL; fields[1].in_handler_priv = NULL; - jtag_add_dr_scan(2, fields, -1); + jtag_add_dr_scan(2, fields, TAP_INVALID); fields[0].num_bits = 32; fields[0].out_value = packet; @@ -879,7 +834,7 @@ int xscale_load_ic(target_t *target, int mini, u32 va, u32 buffer[8]) { buf_set_u32(packet, 0, 32, buffer[word]); cmd = parity(*((u32*)packet)); - jtag_add_dr_scan(2, fields, -1); + jtag_add_dr_scan(2, fields, TAP_INVALID); } jtag_execute_queue(); @@ -896,8 +851,8 @@ int xscale_invalidate_ic_line(target_t *target, u32 va) scan_field_t fields[2]; - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.ldic); /* LDIC */ + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.ldic); /* LDIC */ /* CMD for invalidate IC line b000, bits [6:4] b000 */ buf_set_u32(&cmd, 0, 6, 0x0); @@ -905,7 +860,7 @@ int xscale_invalidate_ic_line(target_t *target, u32 va) /* virtual address of desired cache line */ buf_set_u32(packet, 0, 27, va >> 5); - fields[0].device = xscale->jtag_info.chain_pos; + fields[0].tap = xscale->jtag_info.tap; fields[0].num_bits = 6; fields[0].out_value = &cmd; fields[0].out_mask = NULL; @@ -915,7 +870,7 @@ int xscale_invalidate_ic_line(target_t *target, u32 va) fields[0].in_handler = NULL; fields[0].in_handler_priv = NULL; - fields[1].device = xscale->jtag_info.chain_pos; + fields[1].tap = xscale->jtag_info.tap; fields[1].num_bits = 27; fields[1].out_value = packet; fields[1].out_mask = NULL; @@ -925,7 +880,7 @@ int xscale_invalidate_ic_line(target_t *target, u32 va) fields[1].in_handler = NULL; fields[1].in_handler_priv = NULL; - jtag_add_dr_scan(2, fields, -1); + jtag_add_dr_scan(2, fields, TAP_INVALID); return ERROR_OK; } @@ -1021,7 +976,7 @@ int xscale_arch_state(struct target_s *target) "MMU: %s, D-Cache: %s, I-Cache: %s" "%s", armv4_5_state_strings[armv4_5->core_state], - target_debug_reason_strings[target->debug_reason], + Jim_Nvp_value2name_simple( nvp_target_debug_reason, target->debug_reason )->name , armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)], buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32), buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32), @@ -1059,7 +1014,7 @@ int xscale_poll(target_t *target) /* here we "lie" so GDB won't get stuck and a reset can be perfomed */ target->state = TARGET_HALTED; } - + /* debug_entry could have overwritten target state (i.e. immediate resume) * don't signal event handlers in that case */ @@ -1092,7 +1047,7 @@ int xscale_debug_entry(target_t *target) xscale->external_debug_break = 0; if ((retval=xscale_read_dcsr(target))!=ERROR_OK) return retval; - + /* get r0, pc, r1 to r7 and cpsr */ if ((retval=xscale_receive(target, buffer, 10))!=ERROR_OK) return retval; @@ -1137,6 +1092,10 @@ int xscale_debug_entry(target_t *target) else armv4_5->core_state = ARMV4_5_STATE_ARM; + + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) + return ERROR_FAIL; + /* get banked registers, r8 to r14, and spsr if not in USR/SYS mode */ if ((armv4_5->core_mode != ARMV4_5_MODE_USR) && (armv4_5->core_mode != ARMV4_5_MODE_SYS)) { @@ -1259,11 +1218,12 @@ int xscale_halt(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - LOG_DEBUG("target->state: %s", target_state_strings[target->state]); + LOG_DEBUG("target->state: %s", + Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); if (target->state == TARGET_HALTED) { - LOG_WARNING("target was already halted"); + LOG_DEBUG("target was already halted"); return ERROR_OK; } else if (target->state == TARGET_UNKNOWN) @@ -1293,6 +1253,7 @@ int xscale_enable_single_step(struct target_s *target, u32 next_pc) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale= armv4_5->arch_info; reg_t *ibcr0 = &xscale->reg_cache->reg_list[XSCALE_IBCR0]; + int retval; if (xscale->ibcr0_used) { @@ -1309,7 +1270,8 @@ int xscale_enable_single_step(struct target_s *target, u32 next_pc) } } - xscale_set_reg_u32(ibcr0, next_pc | 0x1); + if ((retval=xscale_set_reg_u32(ibcr0, next_pc | 0x1))!=ERROR_OK) + return retval; return ERROR_OK; } @@ -1319,8 +1281,10 @@ int xscale_disable_single_step(struct target_s *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale= armv4_5->arch_info; reg_t *ibcr0 = &xscale->reg_cache->reg_list[XSCALE_IBCR0]; + int retval; - xscale_set_reg_u32(ibcr0, 0x0); + if ((retval=xscale_set_reg_u32(ibcr0, 0x0))!=ERROR_OK) + return retval; return ERROR_OK; } @@ -1481,101 +1445,129 @@ int xscale_resume(struct target_s *target, int current, u32 address, int handle_ return ERROR_OK; } -int xscale_step(struct target_s *target, int current, u32 address, int handle_breakpoints) +static int xscale_step_inner(struct target_s *target, int current, u32 address, int handle_breakpoints) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - breakpoint_t *breakpoint = target->breakpoints; - u32 current_pc, next_pc; - int i; + u32 next_pc; int retval; - - if (target->state != TARGET_HALTED) - { - LOG_WARNING("target not halted"); - return ERROR_TARGET_NOT_HALTED; - } - - /* current = 1: continue on current pc, otherwise continue at
*/ - if (!current) - buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address); - - current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); - - /* if we're at the reset vector, we have to simulate the step */ - if (current_pc == 0x0) - { - arm_simulate_step(target, NULL); - current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); - - target->debug_reason = DBG_REASON_SINGLESTEP; - target_call_event_callbacks(target, TARGET_EVENT_HALTED); - - return ERROR_OK; - } - - /* the front-end may request us not to handle breakpoints */ - if (handle_breakpoints) - if ((breakpoint = breakpoint_find(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)))) - { - xscale_unset_breakpoint(target, breakpoint); - } + int i; target->debug_reason = DBG_REASON_SINGLESTEP; /* calculate PC of next instruction */ if ((retval = arm_simulate_step(target, &next_pc)) != ERROR_OK) { - u32 current_opcode; + u32 current_opcode, current_pc; + current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); + target_read_u32(target, current_pc, ¤t_opcode); LOG_ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode); + return retval; } LOG_DEBUG("enable single-step"); - xscale_enable_single_step(target, next_pc); + if ((retval=xscale_enable_single_step(target, next_pc))!=ERROR_OK) + return retval; /* restore banked registers */ - xscale_restore_context(target); + if ((retval=xscale_restore_context(target))!=ERROR_OK) + return retval; /* send resume request (command 0x30 or 0x31) * clean the trace buffer if it is to be enabled (0x62) */ if (xscale->trace.buffer_enabled) { - xscale_send_u32(target, 0x62); - xscale_send_u32(target, 0x31); + if ((retval=xscale_send_u32(target, 0x62))!=ERROR_OK) + return retval; + if ((retval=xscale_send_u32(target, 0x31))!=ERROR_OK) + return retval; } else - xscale_send_u32(target, 0x30); + if ((retval=xscale_send_u32(target, 0x30))!=ERROR_OK) + return retval; /* send CPSR */ - xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); + if ((retval=xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)))!=ERROR_OK) + return retval; LOG_DEBUG("writing cpsr with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32)); for (i = 7; i >= 0; i--) { /* send register */ - xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); + if ((retval=xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)))!=ERROR_OK) + return retval; LOG_DEBUG("writing r%i with value 0x%8.8x", i, buf_get_u32(armv4_5->core_cache->reg_list[i].value, 0, 32)); } /* send PC */ - xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); + if ((retval=xscale_send_u32(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)))!=ERROR_OK) + return retval; LOG_DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); target_call_event_callbacks(target, TARGET_EVENT_RESUMED); /* registers are now invalid */ - armv4_5_invalidate_core_regs(target); + if ((retval=armv4_5_invalidate_core_regs(target))!=ERROR_OK) + return retval; /* wait for and process debug entry */ - xscale_debug_entry(target); + if ((retval=xscale_debug_entry(target))!=ERROR_OK) + return retval; LOG_DEBUG("disable single-step"); - xscale_disable_single_step(target); + if ((retval=xscale_disable_single_step(target))!=ERROR_OK) + return retval; target_call_event_callbacks(target, TARGET_EVENT_HALTED); + return ERROR_OK; +} + +int xscale_step(struct target_s *target, int current, u32 address, int handle_breakpoints) +{ + armv4_5_common_t *armv4_5 = target->arch_info; + breakpoint_t *breakpoint = target->breakpoints; + + u32 current_pc; + int retval; + + if (target->state != TARGET_HALTED) + { + LOG_WARNING("target not halted"); + return ERROR_TARGET_NOT_HALTED; + } + + /* current = 1: continue on current pc, otherwise continue at
*/ + if (!current) + buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address); + + current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); + + /* if we're at the reset vector, we have to simulate the step */ + if (current_pc == 0x0) + { + if ((retval=arm_simulate_step(target, NULL))!=ERROR_OK) + return retval; + current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); + + target->debug_reason = DBG_REASON_SINGLESTEP; + target_call_event_callbacks(target, TARGET_EVENT_HALTED); + + return ERROR_OK; + } + + /* the front-end may request us not to handle breakpoints */ + if (handle_breakpoints) + if ((breakpoint = breakpoint_find(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)))) + { + if ((retval=xscale_unset_breakpoint(target, breakpoint))!=ERROR_OK) + return retval; + } + + retval = xscale_step_inner(target, current, address, handle_breakpoints); + if (breakpoint) { xscale_set_breakpoint(target, breakpoint); @@ -1592,22 +1584,14 @@ int xscale_assert_reset(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - LOG_DEBUG("target->state: %s", target_state_strings[target->state]); + LOG_DEBUG("target->state: %s", + Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name); - /* TRST every time. We want to be able to support daemon_startup attach */ - jtag_add_reset(1, 0); - jtag_add_sleep(5000); - jtag_add_reset(0, 0); - jtag_add_sleep(5000); - jtag_execute_queue(); - - - /* select DCSR instruction (set endstate to R-T-I to ensure we don't * end up in T-L-R, which would reset JTAG */ - jtag_add_end_state(TAP_RTI); - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, xscale->jtag_info.dcsr); + jtag_add_end_state(TAP_IDLE); + xscale_jtag_set_instr(xscale->jtag_info.tap, xscale->jtag_info.dcsr); /* set Hold reset, Halt mode and Trap Reset */ buf_set_u32(xscale->reg_cache->reg_list[XSCALE_DCSR].value, 30, 1, 0x1); @@ -1615,7 +1599,7 @@ int xscale_assert_reset(target_t *target) xscale_write_dcsr(target, 1, 0); /* select BYPASS, because having DCSR selected caused problems on the PXA27x */ - xscale_jtag_set_instr(xscale->jtag_info.chain_pos, 0x7f); + xscale_jtag_set_instr(xscale->jtag_info.tap, 0x7f); jtag_execute_queue(); /* assert reset */ @@ -1627,6 +1611,13 @@ int xscale_assert_reset(target_t *target) target->state = TARGET_RESET; + if (target->reset_halt) + { + int retval; + if ((retval = target_halt(target))!=ERROR_OK) + return retval; + } + return ERROR_OK; } @@ -1640,7 +1631,7 @@ int xscale_deassert_reset(target_t *target) u32 binary_size; u32 buf_cnt; - int i; + u32 i; int retval; breakpoint_t *breakpoint = target->breakpoints; @@ -1673,7 +1664,7 @@ int xscale_deassert_reset(target_t *target) /* wait 300ms; 150 and 100ms were not enough */ jtag_add_sleep(300*1000); - jtag_add_runtest(2030, TAP_RTI); + jtag_add_runtest(2030, TAP_IDLE); jtag_execute_queue(); /* set Hold reset, Halt mode and Trap Reset */ @@ -1709,7 +1700,7 @@ int xscale_deassert_reset(target_t *target) if ((retval = fileio_read(&debug_handler, 32, buffer, &buf_cnt)) != ERROR_OK) { - + } for (i = 0; i < buf_cnt; i += 4) @@ -1720,7 +1711,7 @@ int xscale_deassert_reset(target_t *target) for (; buf_cnt < 32; buf_cnt += 4) { - cache_line[buf_cnt / 4] = 0xe1a08008; + cache_line[buf_cnt / 4] = 0xe1a08008; } /* only load addresses other than the reset vectors */ @@ -1736,7 +1727,7 @@ int xscale_deassert_reset(target_t *target) xscale_load_ic(target, 1, 0x0, xscale->low_vectors); xscale_load_ic(target, 1, 0xffff0000, xscale->high_vectors); - jtag_add_runtest(30, TAP_RTI); + jtag_add_runtest(30, TAP_IDLE); jtag_add_sleep(100000); @@ -1749,7 +1740,7 @@ int xscale_deassert_reset(target_t *target) xscale_write_dcsr(target, 0, 1); target->state = TARGET_RUNNING; - if ((target->reset_mode != RESET_HALT) && (target->reset_mode != RESET_INIT)) + if (!target->reset_halt) { jtag_add_sleep(10000); @@ -1768,19 +1759,16 @@ int xscale_deassert_reset(target_t *target) jtag_add_reset(0, 0); } - return ERROR_OK; } int xscale_soft_reset_halt(struct target_s *target) { - return ERROR_OK; } int xscale_read_core_reg(struct target_s *target, int num, enum armv4_5_mode mode) { - return ERROR_OK; } @@ -1940,7 +1928,7 @@ int xscale_read_memory(struct target_s *target, u32 address, u32 size, u32 count armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; u32 *buf32; - int i; + u32 i; int retval; LOG_DEBUG("address: 0x%8.8x, size: 0x%8.8x, count: 0x%8.8x", address, size, count); @@ -2097,11 +2085,6 @@ int xscale_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe return xscale_write_memory(target, address, 4, count, buffer); } -int xscale_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum) -{ - return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; -} - u32 xscale_get_ttb(target_t *target) { armv4_5_common_t *armv4_5 = target->arch_info; @@ -2181,6 +2164,7 @@ void xscale_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_ca int xscale_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { + int retval; armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; @@ -2190,9 +2174,6 @@ int xscale_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) return ERROR_TARGET_NOT_HALTED; } - if (xscale->force_hw_bkpts) - breakpoint->type = BKPT_HARD; - if (breakpoint->set) { LOG_WARNING("breakpoint already set"); @@ -2225,22 +2206,33 @@ int xscale_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) if (breakpoint->length == 4) { /* keep the original instruction in target endianness */ - target->type->read_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr); + if((retval = target->type->read_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } /* write the original instruction in target endianness (arm7_9->arm_bkpt is host endian) */ - target_write_u32(target, breakpoint->address, xscale->arm_bkpt); + if((retval = target_write_u32(target, breakpoint->address, xscale->arm_bkpt)) != ERROR_OK) + { + return retval; + } } else { /* keep the original instruction in target endianness */ - target->type->read_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr); + if((retval = target->type->read_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } /* write the original instruction in target endianness (arm7_9->arm_bkpt is host endian) */ - target_write_u32(target, breakpoint->address, xscale->thumb_bkpt); + if((retval = target_write_u32(target, breakpoint->address, xscale->thumb_bkpt)) != ERROR_OK) + { + return retval; + } } breakpoint->set = 1; } return ERROR_OK; - } int xscale_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint) @@ -2254,21 +2246,11 @@ int xscale_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint) return ERROR_TARGET_NOT_HALTED; } - if (xscale->force_hw_bkpts) - { - LOG_DEBUG("forcing use of hardware breakpoint at address 0x%8.8x", breakpoint->address); - breakpoint->type = BKPT_HARD; - } - if ((breakpoint->type == BKPT_HARD) && (xscale->ibcr_available < 1)) { LOG_INFO("no breakpoint unit available for hardware breakpoint"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - else - { - xscale->ibcr_available--; - } if ((breakpoint->length != 2) && (breakpoint->length != 4)) { @@ -2276,11 +2258,17 @@ int xscale_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint) return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } + if (breakpoint->type == BKPT_HARD) + { + xscale->ibcr_available--; + } + return ERROR_OK; } int xscale_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { + int retval; armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; @@ -2315,11 +2303,17 @@ int xscale_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint) /* restore original instruction (kept in target endianness) */ if (breakpoint->length == 4) { - target->type->write_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr); + if((retval = target->type->write_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } } else { - target->type->write_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr); + if((retval = target->type->write_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr)) != ERROR_OK) + { + return retval; + } } breakpoint->set = 0; } @@ -2939,7 +2933,7 @@ int xscale_analyze_trace(target_t *target, command_context_t *cmd_ctx) (((instruction.type == ARM_B) || (instruction.type == ARM_BL) || (instruction.type == ARM_BLX)) && - (instruction.info.b_bl_bx_blx.target_address != -1))) + (instruction.info.b_bl_bx_blx.target_address != ~0UL))) { xscale->trace.current_pc = instruction.info.b_bl_bx_blx.target_address; } @@ -3034,13 +3028,12 @@ int xscale_init_target(struct command_context_s *cmd_ctx, struct target_s *targe return ERROR_OK; } -int xscale_quit() +int xscale_quit(void) { - return ERROR_OK; } -int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_pos, char *variant) +int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, jtag_tap_t *tap, const char *variant) { armv4_5_common_t *armv4_5; u32 high_reset_branch, low_reset_branch; @@ -3056,7 +3049,7 @@ int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_p xscale->variant = strdup(variant); /* prepare JTAG information for the new target */ - xscale->jtag_info.chain_pos = chain_pos; + xscale->jtag_info.tap = tap; xscale->jtag_info.dbgrx = 0x02; xscale->jtag_info.dbgtx = 0x10; @@ -3109,8 +3102,6 @@ int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_p xscale->hold_rst = 0; xscale->external_debug_break = 0; - xscale->force_hw_bkpts = 1; - xscale->ibcr_available = 2; xscale->ibcr0_used = 0; xscale->ibcr1_used = 0; @@ -3146,31 +3137,16 @@ int xscale_init_arch_info(target_t *target, xscale_common_t *xscale, int chain_p xscale->armv4_5_mmu.enable_mmu_caches = xscale_enable_mmu_caches; xscale->armv4_5_mmu.has_tiny_pages = 1; xscale->armv4_5_mmu.mmu_enabled = 0; - - xscale->fast_memory_access = 0; return ERROR_OK; } /* target xscale */ -int xscale_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target) +int xscale_target_create(struct target_s *target, Jim_Interp *interp) { - int chain_pos; - char *variant = NULL; - xscale_common_t *xscale = malloc(sizeof(xscale_common_t)); - memset(xscale, 0, sizeof(*xscale)); + xscale_common_t *xscale = calloc(1,sizeof(xscale_common_t)); - if (argc < 5) - { - LOG_ERROR("'target xscale' requires four arguments: "); - return ERROR_OK; - } - - chain_pos = strtoul(args[3], NULL, 0); - - variant = args[4]; - - xscale_init_arch_info(target, xscale, chain_pos, variant); + xscale_init_arch_info(target, xscale, target->tap, target->variant); xscale_build_reg_cache(target); return ERROR_OK; @@ -3193,12 +3169,12 @@ int xscale_handle_debug_handler_command(struct command_context_s *cmd_ctx, char if ((target = get_target_by_num(strtoul(args[0], NULL, 0))) == NULL) { LOG_ERROR("no target '%s' configured", args[0]); - return ERROR_OK; + return ERROR_FAIL; } if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - return ERROR_OK; + return ERROR_FAIL; } handler_address = strtoul(args[1], NULL, 0); @@ -3211,6 +3187,7 @@ int xscale_handle_debug_handler_command(struct command_context_s *cmd_ctx, char else { LOG_ERROR("xscale debug_handler
must be between 0x800 and 0x1fef800 or between 0xfe000800 and 0xfffff800"); + return ERROR_FAIL; } return ERROR_OK; @@ -3226,19 +3203,18 @@ int xscale_handle_cache_clean_address_command(struct command_context_s *cmd_ctx, if (argc < 2) { - LOG_ERROR("'xscale cache_clean_address
' command takes two required operands"); - return ERROR_OK; + return ERROR_COMMAND_SYNTAX_ERROR; } if ((target = get_target_by_num(strtoul(args[0], NULL, 0))) == NULL) { LOG_ERROR("no target '%s' configured", args[0]); - return ERROR_OK; + return ERROR_FAIL; } if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { - return ERROR_OK; + return ERROR_FAIL; } cache_clean_address = strtoul(args[1], NULL, 0); @@ -3278,8 +3254,7 @@ static int xscale_virt2phys(struct target_s *target, u32 virtual, u32 *physical) u32 cb; int domain; u32 ap; - - + if ((retval = xscale_get_arch_pointers(target, &armv4_5, &xscale)) != ERROR_OK) { return retval; @@ -3297,7 +3272,7 @@ static int xscale_mmu(struct target_s *target, int *enabled) { armv4_5_common_t *armv4_5 = target->arch_info; xscale_common_t *xscale = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_ERROR("Target not halted"); @@ -3307,7 +3282,6 @@ static int xscale_mmu(struct target_s *target, int *enabled) return ERROR_OK; } - int xscale_handle_mmu_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc) { target_t *target = get_current_target(cmd_ctx); @@ -3393,7 +3367,7 @@ int xscale_handle_idcache_command(command_context_t *cmd_ctx, char *cmd, char ** command_print(cmd_ctx, "icache %s", (xscale->armv4_5_mmu.armv4_5_cache.i_cache_enabled) ? "enabled" : "disabled"); if (dcache) - command_print(cmd_ctx, "dcache %s", (xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled) ? "enabled" : "disabled"); + command_print(cmd_ctx, "dcache %s", (xscale->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled) ? "enabled" : "disabled"); return ERROR_OK; } @@ -3425,34 +3399,6 @@ int xscale_handle_vector_catch_command(command_context_t *cmd_ctx, char *cmd, ch return ERROR_OK; } -int xscale_handle_force_hw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - target_t *target = get_current_target(cmd_ctx); - armv4_5_common_t *armv4_5; - xscale_common_t *xscale; - - if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) - { - return ERROR_OK; - } - - if ((argc >= 1) && (strcmp("enable", args[0]) == 0)) - { - xscale->force_hw_bkpts = 1; - } - else if ((argc >= 1) && (strcmp("disable", args[0]) == 0)) - { - xscale->force_hw_bkpts = 0; - } - else - { - command_print(cmd_ctx, "usage: xscale force_hw_bkpts "); - } - - command_print(cmd_ctx, "force hardware breakpoints %s", (xscale->force_hw_bkpts) ? "enabled" : "disabled"); - - return ERROR_OK; -} int xscale_handle_trace_buffer_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { @@ -3663,12 +3609,12 @@ int xscale_handle_cp15(command_context_t *cmd_ctx, char *cmd, char **args, int a target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; xscale_common_t *xscale; - + if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) { return ERROR_OK; } - + if (target->state != TARGET_HALTED) { command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd); @@ -3690,7 +3636,7 @@ int xscale_handle_cp15(command_context_t *cmd_ctx, char *cmd, char **args, int a break; case 2: reg_no = XSCALE_TTB; - break; + break; case 3: reg_no = XSCALE_DAC; break; @@ -3711,73 +3657,38 @@ int xscale_handle_cp15(command_context_t *cmd_ctx, char *cmd, char **args, int a return ERROR_INVALID_ARGUMENTS; } reg = &xscale->reg_cache->reg_list[reg_no]; - + } if(argc == 1) { u32 value; - + /* read cp15 control register */ xscale_get_reg(reg); value = buf_get_u32(reg->value, 0, 32); command_print(cmd_ctx, "%s (/%i): 0x%x", reg->name, reg->size, value); } else if(argc == 2) - { + { u32 value = strtoul(args[1], NULL, 0); - + /* send CP write request (command 0x41) */ xscale_send_u32(target, 0x41); - + /* send CP register number */ xscale_send_u32(target, reg_no); - + /* send CP register value */ xscale_send_u32(target, value); - + /* execute cpwait to ensure outstanding operations complete */ xscale_send_u32(target, 0x53); } else { - command_print(cmd_ctx, "usage: cp15 [register]<, [value]>"); - } - - return ERROR_OK; -} - -int handle_xscale_fast_memory_access_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - target_t *target = get_current_target(cmd_ctx); - armv4_5_common_t *armv4_5; - xscale_common_t *xscale; - - if (xscale_get_arch_pointers(target, &armv4_5, &xscale) != ERROR_OK) - { - return ERROR_OK; - } - - if (argc == 1) - { - if (strcmp("enable", args[0]) == 0) - { - xscale->fast_memory_access = 1; - } - else if (strcmp("disable", args[0]) == 0) - { - xscale->fast_memory_access = 0; - } - else - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - } else if (argc!=0) - { - return ERROR_COMMAND_SYNTAX_ERROR; + command_print(cmd_ctx, "usage: cp15 [register]<, [value]>"); } - - command_print(cmd_ctx, "fast memory access is %s", (xscale->fast_memory_access) ? "enabled" : "disabled"); return ERROR_OK; } @@ -3796,7 +3707,7 @@ int xscale_register_commands(struct command_context_s *cmd_ctx) register_command(cmd_ctx, xscale_cmd, "icache", xscale_handle_idcache_command, COMMAND_EXEC, "['enable'|'disable'] the ICache"); register_command(cmd_ctx, xscale_cmd, "dcache", xscale_handle_idcache_command, COMMAND_EXEC, "['enable'|'disable'] the DCache"); - register_command(cmd_ctx, xscale_cmd, "vector_catch", xscale_handle_idcache_command, COMMAND_EXEC, " of vectors that should be catched"); + register_command(cmd_ctx, xscale_cmd, "vector_catch", xscale_handle_vector_catch_command, COMMAND_EXEC, " of vectors that should be catched"); register_command(cmd_ctx, xscale_cmd, "trace_buffer", xscale_handle_trace_buffer_command, COMMAND_EXEC, " ['fill' [n]|'wrap']"); @@ -3806,10 +3717,7 @@ int xscale_register_commands(struct command_context_s *cmd_ctx) COMMAND_EXEC, "load image from [base address]"); register_command(cmd_ctx, xscale_cmd, "cp15", xscale_handle_cp15, COMMAND_EXEC, "access coproc 15 [value]"); - register_command(cmd_ctx, xscale_cmd, "fast_memory_access", handle_xscale_fast_memory_access_command, - COMMAND_ANY, "use fast memory accesses instead of slower but potentially unsafe slow accesses "); - armv4_5_register_commands(cmd_ctx); return ERROR_OK;